GLM-5.3 Flash

MIT

Z.ai · 320B (18B active) · Mixture of Experts

First natively multimodal GLM-5 — hybrid sparse/linear attention, 18B active, beats GLM-5.2 at a tenth of the price Check if your GPU or Mac can run GLM-5.3 Flash locally — 178.8 GB min, 298 GB recommended.

2026-081024K context

Mixture of Experts

Total experts: 288
Active experts: 8
Active params: 18.0B

Quantization Options

QuantBitsVRAMQualityStatus
Q2_K2102.9 GBlow—
Q3_K_M3143.9 GBmoderate—
Q4_K_M4164.4 GBgood—
Q5_K_M5205.4 GBgood—
Q6_K6246.4 GBexcellent—
Q8_08328.3 GBexcellent—
F1616656.2 GBlossless—

Can I run GLM-5.3 Flash locally?

Can I run GLM-5.3 Flash locally?
GLM-5.3 Flash needs about 178.8 GB of memory at a minimum and 298 GB recommended. Open this page to grade it against your GPU or Mac, then run it with runai, Ollama or LM Studio.
How much VRAM does GLM-5.3 Flash need?
At Q4_K_M, GLM-5.3 Flash uses about 164.4 GB of VRAM. Higher quants need more memory; lower quants fit tighter cards with a quality tradeoff.